TVZ2020
/
Vatrodojava
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Diff: sirena.cpp
- Revision:
- 0:07997c7eb70b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sirena.cpp Thu Feb 18 17:37:33 2021 +0000
@@ -0,0 +1,21 @@
+#include "mbed.h"
+#include "sirena.h" //zvuk stvoren pomoću Buzzera
+ //vremensko ograničenje korištenja Buzzera
+using namespace mbed; // Zvuk objekt s pinom na mikrokontroleru
+
+sirena::sirena(PinName pin) : _pwm(pin) // ime i ulaz(pin)
+{
+ _pwm.write(0.0);
+}
+
+void sirena::nobeep()
+{
+ _pwm.write(0.0);
+}
+
+void sirena::beep(float freq, float time) //frekvencija tona i trajanje u sekundama
+{
+ _pwm.period(1.0/freq);
+ _pwm.write(0.5); // duty cycle 50%
+ toff.attach(this,&sirena::nobeep, time); //vrijeme zaustavljanja
+}
\ No newline at end of file